Virtual power plant scheduling method and system

Abstract

The present invention provides a virtual power plant scheduling method and system. The method comprises the steps of: selecting a preset number of wind power plant output scenes, photovoltaic output scenes and electricity price scenes in the same time period in a preset scene library according to a scheduling period; determining the working state and the market electricity price of the corresponding pumped storage power station based on the output scene of each wind power plant, the photovoltaic output scene, the bilateral contract electricity quantity in the scheduling period and the electricity price scene; obtaining a wind power plant output scene, a photovoltaic output scene, the output of the pumped storage power station and the output of the traditional power plant at the maximum profit of the virtual power plant according to the working state of the pumped storage power station, the market electricity price, the power generation cost of the traditional power plant and the starting cost; and performing day-ahead scheduling based on the wind power plant output scene, the photovoltaic output scene, the output of the pumped storage power station and the output of the traditionalpower plant. According to the method and system, the uncertainty of power grid dispatching caused by fluctuation of large-scale distributed power supply access to the power grid, distributed energy output and network load is solved.

Description

technical field

[0001] The invention relates to the field of power system operation and control, in particular to a scheduling method and system for a virtual power plant. Background technique

[0002] With the rapid development of social economy, the demand for energy in various industries is increasing day by day, but fossil energy is becoming increasingly exhausted, and the development of nuclear energy is restricted. In order to achieve sustainable energy utilization and harmonious economic and social development, countries around the world generally take measures to improve energy utilization. efficiency, vigorously develop clean and renewable energy, and improve the energy structure. The distributed power generation in the distribution network is small in scale, scattered in layout, and huge in quantity. The distribution network has evolved into an active distribution network with many adjustable and controllable resources. The main network and the distribution network...

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